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Chatterji, Madhabi – Educational Researcher, 2008
Traditional methods for preparing systematic reviews and syntheses of effectiveness studies rely on a limited set of methodological criteria to include studies that measure and report effects too narrowly to forward the mission of evidence-based practice. This article discusses why and how the criteria for study selection, evidence screening, and…
Descriptors: Theory Practice Relationship, Program Effectiveness, Program Evaluation, Evaluation Criteria
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Chatterji, Madhabi – Educational Researcher, 2005
Federal policy tools for gathering evidence on "What Works" in education, such as the What Works Clearinghouse's (WWC) standards, emphasize randomized field trials as the preferred method for generating scientific evidence on the effectiveness of educational programs. This article argues instead for extended-term mixed-method (ETMM) designs.…
Descriptors: Educational Research, Research Methodology, Evaluation Methods, Educational Research
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Chatterji, Madhabi – Educational Researcher, 2004
Federal policy tools for gathering evidence on "What Works" in education, such as the What Works Clearinghouse's (WWC) standards, emphasize randomized field trials as the preferred method for generating scientific evidence on the effectiveness of educational programs. This article argues instead for extended-term mixed-method (ETMM) designs.…
Descriptors: Educational Research, Research Methodology, Evaluation Methods, Evaluation Research